Age can be a valid factor in an argument if used right. Typically, older people go through schooling so that they know more. Of course, its possible for younger people to know more than older people. That's not valid in this case.
how many years you go through school is not a determining factor for maturity. you can be 30 something years old and act like a whiney bitch, free from responsibilities such as work and hygiene but in essence you're still a child. Likewise, there are children who realize at a young age how to be mature and how to actually have some respect for other people. The way i see it, both you and metario lack this so i'm going to assume you both have the mind of 12 year olds.
Clearly, you havent been in school enough to know that melinan (a pigmentation) does not correlate to brain activity.
Most of us have been in school long enough to know when someone is intentionally exaggerating.